EP0133759B1 - Einrichtung und Verfahren zur Montage von Lamellen für Jalousien - Google Patents

Einrichtung und Verfahren zur Montage von Lamellen für Jalousien Download PDF

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Publication number
EP0133759B1
EP0133759B1 EP84304742A EP84304742A EP0133759B1 EP 0133759 B1 EP0133759 B1 EP 0133759B1 EP 84304742 A EP84304742 A EP 84304742A EP 84304742 A EP84304742 A EP 84304742A EP 0133759 B1 EP0133759 B1 EP 0133759B1
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EP
European Patent Office
Prior art keywords
slat
slats
ladder
stack
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84304742A
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English (en)
French (fr)
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EP0133759A2 (de
EP0133759A3 (en
Inventor
Adrianus J.C. Gaillard
Richard N. Anderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunter Douglas Industries BV
Original Assignee
Hunter Douglas Industries BV
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Filing date
Publication date
Application filed by Hunter Douglas Industries BV filed Critical Hunter Douglas Industries BV
Publication of EP0133759A2 publication Critical patent/EP0133759A2/de
Publication of EP0133759A3 publication Critical patent/EP0133759A3/en
Application granted granted Critical
Publication of EP0133759B1 publication Critical patent/EP0133759B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/266—Devices or accessories for making or mounting lamellar blinds or parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/39—Venetian blind assembling

Definitions

  • the invention relates to an apparatus and to a method for assembling the slats of a venetian blind in the ladder means of the blind.
  • ladder means usually include side ladder cords or tapes with rungs spanning these side cords or tapes.
  • the rungs can either be single cords or tapes of multiple cords or tapes in which latter case the slat is sometimes inserted between two rungs of a multiple rung pair.
  • a slat is inserted horizontally between the two vertical side cords or the ladders and between two adjacent rungs thereof.
  • the flap lying to one side holds the ladder obliquely such that the rung above the slat is to one side of the hole therethrough.
  • the slat is then lifted and a vertical needle for inserting a lifting cord or chain enters the hole as the louvre is lifted.
  • This lifting motion also lifts the ladder to cause the flap to pivot and flip over to a position on the other side of the hole so that the next accepted rung will be on the other side of the hole and the needle.
  • the assembly operation continues and results in the rungs of the ladder being disposed alternately on opposite sides of the lifting cord or chain.
  • Such an apparatus is perfectly satisfactory and works very well for the manufacture of individual blinds. Having assembled the slats in the ladder means, the thus formed assembly is assembled with a headrail and, where appropriate, provided with a bottom rail. For this purpose, the ladder means are cut and the loose end of the ladder means supply has to be fixed to the apparatus before starting each new blind assembling operation.
  • the object of the present invention is to provide an apparatus and a method for assembling of the slats of venetian blinds in order to speed up and facilitate a higher production rate and more efficiency in the operation of the slat- forming machine.
  • the assembly apparatus of the present invention is characterised in that intermittently operable means are provided firstly to over-ride said control means, effective to enable said drive means to lift a stack of slats held by said retaining means to a second position located substantially therebeyond and by a distance whereby several rungs of the ladder means move past the level of said first guide and in that second retaining means are provided at said second position to retain a stack of slats so lifted to said second position and secondly to disable said slat material feed means during the time that the slats are lifted by the drive means to the second higher level.
  • the apparatus of the present invention is capable of producing a normal stack of blind slats assembled in the ladder means and then moves the thus formed stack as a whole to a separate higher position and several of the rungs of the ladder means do not have slats inserted in the rungs but are advanced during this specific lifting operation.
  • This stack of slats is then retained at the second higher position so that it can be subsequently removed. That portion of the ladder means which does not have slats inserted therein can be cut after the forming of a second stack at the first position has begun and the thereby created lower ends can be used for connection with a headrail or with a bottom rail, as appropriate.
  • the invention also provides a method of assembling the slats of a venetian blind in the ladder means of the blind, said method comprising the steps of:-
  • a second stack is formed at the first position, the slats of which are fed into the apparatus, lifted by the lifting means to the first position and held there by said first retaining means.
  • the removed stack can then immediately be assembled into a headrail or alternatively it can be placed in store.
  • Such an arrangement enables one to produce so-called "stock blinds" which are sold as a series of selected standard sizes. In fact the stacks can have varying numbers of slats therein so that blinds of various heights can efficiently be assembled.
  • first and second retaining means each comprise resiliently operable pawls mounted on the second guide and in order to cater for different lengths of ladder means in which the slats are not inserted, the location of these pawls can advantageously be adjustable.
  • control means advantageously comprise a retractable abutment movable in the operable position, into the path of said lifting element, effective to restrain movement of the lifting element and the intermittently operable means comprise means to retract said abutment which can, for example, be an electromagnetically operated abutment pin.
  • the abutment pin can be controlled to give the facility of controlling the number of slats in each individual stack.
  • the lifting element may have an adjustable stroke limiter mounted thereon which is engageable with the retractable abutment to give fine adjustment of the stroke of the lifting element to said first position.
  • the drive means desirably is in the form of a linear motor having a stroke bar connected to the lifting element.
  • a linear motor has the advantage that a simple abutment pin in the travel path of the slat lifting device is sufficient to control lifting operation. During the blocking of the motion of the lifting element, the linear motor simply runs idle.
  • the apparatus illustrated comprises a machine platform'10 and an assembly rack or frame 11.
  • a supply wheel 12 of coiled sheet metal for slats On the platform 10 is mounted a supply wheel 12 of coiled sheet metal for slats. This is passed by way of rollers 13 to a first pair of rolls 14 driven by a motor 15.
  • the strip of sheet then passes through a fixture 16 in which it is straightened and formed to the desired concave-convex strip cross-section. Also in fixture 16 the holes required for threading the lifting member are punched and the strips of sheet metal are trimmed to the particular desired length, thus completing the several slats 17.
  • the parts directly associated with the machine on platform 10 are not discussed further herein because they are not related to the present invention.
  • the assembly rack 11 has two vertical U-shaped suspension members 18 having an inside dimension to match the width of a slat 17.
  • a slat When a slat is lifted upward it forces the pawls 19 outwardly against their spring action and thus the slats 17 pass the pawls 19.
  • the springs then urge them inward where they project into the space between the legs of the U of the suspension members 18 and they then serve to retain the slats thereabove.
  • a fixture 20 is arranged for holding and guiding a needle 21 in a vertical direction.
  • the slats are each so inserted in the suspension members 18 that holes 17a for receiving a lift cord and punched in the slots on the machine platform 10 lie exactly beneath the needle 21.
  • the lift cord which may be attached to the tip 21a of the needle 21, when all the slats required for one slat stack have been properly assembled with the ladder 23.
  • the needle may have a lengthwise recess 22 in which a lift cord may already be contained before assembly is begun.
  • the several slats 17 of the blind are held by a ladder 23 preferably, but not necessarily, made up of cords. If the length of the slats is not great, two ladder means 23 will be sufficient; however, for blinds having longer slats, three or more ladders may be provided, more or less evenly spaced over the slat length. For clarity and simplicity only one assembly unit has been shown in Figure 2, but it will be evident that there must be a unit for each ladder all operating simultaneously, each of which will be identical to the unit shown.
  • Each ladder 23 comprises two side cords 23a and rung cords 23b connected between them and arranged at uniform intervals between the side cords 23a. These intervals determine the distance between adjacent slats 17 one above the other when the blind is in the lowered or open position.
  • a flap 24 is arranged, connected to the assembly at 11 and pivoting on a horizontal axis 24 parallel to the plane of the ladder 23.
  • the flap 24 is provided on one face with two guide plates 26 flanged at the sides. These are so shaped and mounted on the flap 24 that the side cords 23a of the ladder 23 can slide between the flap 24 and the plate 26.
  • the plates 26 On their facing sides, the plates 26 have guide rails 26a turned towards the flap 24, but not touching it, but rather leaving enough clearance so that the rungs 23b can pass between the ends of the rails 26a and the flap 24. The distance may be adjusted in a suitable manner.
  • the ladder guiding and spreading device 20 through 26 as described above is indicated merely byway of example and can be replaced by any other guiding and spreading device.
  • a single vertically movable stroke bar 28 can be driven in vertical movement by a linear motor 3C.
  • the stroke bar 28 carries a bifurcated lifting member 31 to lift the slats which are fed into the apparatus by the feed rolls shown in Figure 1.
  • the slats are guided by the webs 18a of the suspension members 18 and by a fixed slat guide 18b.
  • an upstanding frame 33 which is secured at its lower end to the frame 11 and at its upper end the rear arm of each supporting member 18.
  • an electromagnetic assembly 34 mounted with an armature in the form of retractable abutment 35, so that, upon actuation of the electromagnet, the abutment 35 is with-drawn into the device 34.
  • the stroke limiter 36 engages the abutment 35 to restrain the vertical movement of the lifting element 31.
  • the frame 33 is provided with a series of holes 37, on each side, into which can be engaged pins 38 to give a coarse adjustment of the position of the electromagnetic unit 34 and thus of the abutment pin 35.
  • actuation of the linear motor 30 can cause the stroke bar 28 to rise to a much greater height and thereby can cause lifting of a stack of slats to a second position at which it can be retained by second retaining means in the form of further resiliently operable pawls 39.
  • These pawls 39 can be adjusted in their position by engagement of pins (not shown) in holes 40 in the guides 18.
  • Slats 17 are fed in, in turn, to engage the first rungs which are positioned in alignment with the slat guide formed by the web 18a and by the fixed guide 18b. Thus, the slats are engaged on the rungs.
  • the linear motor 30 is then operated to raise the lifting elements 31 and thereby raise the slat and with it the ladder means by an amount equal to the interslat spacing. At this position the slat which has been engaged with a rung on the ladder means is at a first position and is retained by the lower retaining pawls 19.
  • next rung is then aligned with the slat guide and, with the ladder means in this position, the lifting element is lowered by reverse operation of the linear motor.
  • the next slat is fed in and is then raised, as before, and in turn is engaged under the first slat and held in this position by the retaining means 19. This sequence of operations is repeated until a sufficient number of slats are stacked on the retaining means 19 for one venetian blind.
  • the electromagnetic device 34 is operated and the abutment 35 is withdrawn, so that the pin 36 is not impeded and the lifting device continues to rise a sufficient distance for the whole stack of slats which has previously been formed to be raised above the level of the second set of retaining pawls 39. This will therefore cause several rungs of the ladder means to move past the level of the slat guide 18a, 18b without any slats being fed thereinto.
  • the lifting element 31 With the stack of slats retained on the second retaining means 39 the lifting element 31 is lowered by reverse operation of the linear motor, the abutment 35 is moved forward and the operation commences again.
  • the ladder means are cut between the two sets of retaining means 19,39 so that a length of ladder cord is left below the first formed stack and above the second stack which is then subsequently going to be formed.
  • These lengths of ladder means can be used to mount the stack of slats on a headrail and to mount a bottom rail at the bottom of the blind.
  • the number of slats of each stack and the control of the machine operation can be effected by computerized operation control and thus made totally automatic. Simple programming of the required number is adequate for this purpose, thus the number of slats in a stack can be varied at will by the computerized control and the length of movement of the linear motor stroke bar can be adjusted to give the desired length of ladder in which no rungs are inserted.
  • stroke limiter 36 has been shown as an adjustable screwthreaded member, it could take other forms and could be provided with a resilient head to absorb the impact of the abutment or could in fact be made wholly of a resilient material, although this would not provide for such accurate positioning of the lifting element at the top of its stroke.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)

Claims (11)

1. Einrichtung zur Montage von Lamellen (17) einer Jalousie in mindestens zwei Leitereinrichtungen (23) der Jalousie, die die folgenden Bestandteile in Kombination umfaßt:
(a) Eine erste Führung zum Führen des Lamellenmaterials (17) in einer Lamellenzuführrichtung;
(b) eine Einrichtung (14) zum Zuführen des Lamellenmaterials (17) entlang der ersten Führung;
(c) mindestens zwei Montagestationen, von denen jede umfaßt:
i) eine zweite Führung (18) zum Führen einer Lamelle oder eines Lamellenmaterials, die in den Leitereinrichtungen (23) montiert sind in einer Richtung quer zur Zuführrichtung;
ii) eine Einrichtung zur Positionierung von einer der mindestens zwei Leitereinrichtungen derart, daß eine Sprosse (23b) der einen Leiter zu der ersten Führung ausgerichtet ist;
iii) eine Hubeinrichtung (31) zur Bewegung einer jeden Lamelle nach der Montage in die Leitereinrichtungen (23) in Querrichtung entlang der zweiten Führung (18) in eine erste Position und um eine Strecke, daß die nächste Sprosse (23b) der Leitereinrichtungen mit der ersten Führung ausgerichtet ist;
iv) eine erste Halteeinrichtung (19) zum Halten der auf diese Weise in die erste Position angehobenen Lamellen;
v) eine Antriebseinrichtung (28, 30) zur Bewegung des Hubelementes (31); und
vi) eine Steuereinrichtung (36) zum Steuern der Antriebseinrichtung, damit diese das Hubelement so bewegt, daß dieses eine Lamelle in die erste Position bewegt;
dadurch gekennzeichnet, daß intermittierend betätigbare Einrichtungen (34, 35) vorgesehen sind, die erstens die Steuereinrichtungen (36) überholen und die Antriebseinrichtung in die Lage versetzen, einen von der ersten Halteeinrichtung gehaltenen Lamellenstapel bis in eine zweite Position, die wesentlich darüber angeordnet ist, und um eine Strecke anzuheben, bei der mehrere Sprossen der Leitereinrichtungen sich am Niveau der ersten Führung vorbeibewegen, und daß eine zweite Halteeinrichtung (39) an der zweiten Position vorgesehen ist, um einen auf diese Weise in die zweite Position angehobenen Lamellenstapel zu halten und zweitens die Lamellenmaterialzuführeinrichtung während derjenigen Zeit, in der die Lamellen von der Antriebseinrichtung auf das zweite höhere Niveau angehoben werden, außer Betrieb zu setzen.
2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die erste und zweite Halteeinrichtung (19, 39) jeweils elastisch betätigbare Klinken umfassen, die an der zweiten Führung (18) montiert sind.
3. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eine Einrichtung vorgesehen ist, die eine Verstellung der Position der Klinken ermöglicht.
4. Einrichtung nach einem der Ansprüche 1, 2 oder 3, dadurch gekennzeichnet, daß die Steuereinrichtung einen zurückziehbaren Anschlag (35) umfaßt, der in die Betriebsstellung in die Bahn des Hubelementes (31) bewegbar ist und die Bewegung des Hubelementes beschränkt, und daß die intermittierend betätigbare Einrichtung eine Einrichtung zum Zurückziehen des Anschlages (35) umfaßt.
5. Einrichtung nach Anspruch 4, dadurch gekennzeichnet, daß eine Einrichtung vorgesehen ist, die eine Verstellung der Position des zurückziehbaren Anschlages (35) ermöglicht.
6. Einrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß der zurückbare Anschlag (35) einen elektromagnetisch betätigten Anschlagstift umfaßt.
7. Einrichtung nach den Ansprüchen 4, 5 und 6, dadurch gekennzeichnet, daß ein einstellbares Hubbegrenzungselement (36) auf dem Hubelement (31) montiert und mit dem zurückziehbaren Anschlag (35) in Eingriff bringbar ist, um den Hub des Hubelementes (31) in die erste Position fein einzustellen.
8. Einrichtung nach einem der vorangehenden Anprüche, dadurch gekennzeichnet, daß die Antriebseinrichtung (30) einen Linearmotor mit einer Hubstange (28) aufweist, die mit dem Hubelement (31) verbunden ist.
9. Verfahren zum Montieren der Lamellen einer Jalousie in den Leitereinrichtungen der Jalousie mit den folgenden Schritten:
a) Vorsehen einer Lamellenzuführführung;
b) Anordnen von mindestens zwei Leitereinrichtungen derart, daß eine Sprosse einer jeden Leitereinrichtung zur Lamellenzuführführung ausgerichtet ist;
c) Zuführen einer Lamelle oder von Lamellenmaterial, so daß diese bzw. dieses mit den so angeordneten Sprossen in Eingriff tritt, um die Lamellen in den Leitereinrichtungen zu montieren, wobei im Falle von Lamellenmaterial danach dieses auf die Lamellenlänge geschnitten wird;
d) Anheben der montierten Lamelle derart, daß die nächste Sprosse einer jeden Leitereinrichtung zur Lamellenzuführführung ausgerichtet ist;
e) Halten der angehobenen Lamelle in dieser Position;
f) Zuführen einer folgenden Lamelle in die mit der Lamellenführung ausgerichteten Sprossen;
g) Wiederholen der Schritte c) bis f) diverse Male, um an der ersten Position einen ersten Lamellenstapel auszubilden;
gekennzeichnet durch die folgenden weiteren Schritte:
h) momentanes Unterbrechen der Zuführung einer Lamelle oder von Lamellenmaterial;
i) Anheben des auf diese Weise ausgebildeten ersten Stapels in eine zweite Position, die wesentlich über der ersten Position angeordnet ist, um eine Strecke, so daß sich diverse Sprossen der Leitereinrichtungen über das Niveau der ersten Führung hinausbewegen, ohne daß dieser Lamellen zugeführt werden;
j) Halten des Lamellenstapels in der zweiten Position;
k) Wiederholen von mindestens einem der Schritte b) bis e), um die Bildung eines zweiten Stapels in der ersten Position zu beginnen.
I) Durchtrennen der Leitereinrichtungen zwischen der ersten und zweiten Position; und m) Entfernen des ersten Lamellenstapels aus der zweiten Position, falls dies erforderlich sein sollte.
10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß nach dem Eingriff des Stapels mit der zweiten Halteeinrichtung ein vollständiger zweiter Stapel in der ersten Position ausgebildet wird, dessen Lamellen in die Einrichtung geführt, von der Hubeinrichtung in die erste Position angehoben und dort von der ersten Halteeinrichtung gehalten werden.
11. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß der zweite Lamellenstapel nach Vervollständigung in der ersten Position in die zweite Position gehoben und dort gehalten wird, bevor der erste Stapel vollständig aus dieser entfernt worden ist.
EP84304742A 1983-08-01 1984-07-11 Einrichtung und Verfahren zur Montage von Lamellen für Jalousien Expired EP0133759B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US518911 1983-08-01
US06/518,911 US4516300A (en) 1983-08-01 1983-08-01 Apparatus and a method for assembling slats of a venetian blind

Publications (3)

Publication Number Publication Date
EP0133759A2 EP0133759A2 (de) 1985-03-06
EP0133759A3 EP0133759A3 (en) 1986-07-16
EP0133759B1 true EP0133759B1 (de) 1988-11-30

Family

ID=24066001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84304742A Expired EP0133759B1 (de) 1983-08-01 1984-07-11 Einrichtung und Verfahren zur Montage von Lamellen für Jalousien

Country Status (5)

Country Link
US (1) US4516300A (de)
EP (1) EP0133759B1 (de)
CA (1) CA1245430A (de)
DE (1) DE3475418D1 (de)
DK (1) DK160718C (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441941B (sv) * 1984-04-13 1985-11-18 Berndt Roland Nilsson Persienntillverkningsmaskin
US4711005A (en) * 1985-09-12 1987-12-08 Joanna Western Mills Company Method and apparatus for making slats for window blinds and the like from a continuous web of plastic material
FR2586967B3 (fr) * 1985-09-12 1987-08-21 Chang A Shen Mecanisme a fonctionnement continu pour remouler, regler la longueur et assembler des bandes en matiere plastique d'un store
DE3770167D1 (de) * 1987-06-18 1991-06-20 Hunter Douglas Ind Bv Verfahren und vorrichtung zur mechanischen herstellung von jalousien.
DK160892C (da) * 1989-04-25 1991-10-21 Fabers Fab As C Apparat til fremstilling af faerdige lamelpakker til persienner
GB2253228A (en) * 1991-02-18 1992-09-02 Hunter Douglas Ind Bv Apparatus for mechanically assembling slats of a venetian blind
WO1992017676A1 (en) * 1991-04-08 1992-10-15 Norbert Marocco Method and apparatus for the manufacture of blinds
US5349730A (en) * 1993-03-09 1994-09-27 Hunter Douglas Inc. Mehtod and apparatus for assembling blinds
DK0674092T3 (da) * 1994-03-21 1998-05-25 Hunter Douglas Ind Bv Bærestigeføringsmekanisme til en persiennesamlemaskine
AU738962B2 (en) * 1998-06-26 2001-10-04 Hunter Douglas International N.V. Venetian blind lacing station
US7034248B2 (en) * 2003-08-26 2006-04-25 Crouse Jr Edward D Method and apparatus for customizing louvered blinds

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6701043A (de) * 1967-01-23 1968-07-24
NL7013154A (de) * 1970-09-04 1972-03-07
US3766815A (en) * 1971-01-08 1973-10-23 Hunter Douglas International Apparatus for forming strip
SE361915B (de) * 1972-04-12 1973-11-19 S A Nilsson
DE2535453C2 (de) * 1975-08-08 1986-12-11 Hunter Douglas Industries B.V., Rotterdam Vorrichtung zum Fertigstellen von Lamellenjalousien
DE2644276C2 (de) * 1976-09-30 1985-01-17 Hunter Douglas Industries B.V., Rotterdam Maschine zur Montage von raffbaren Lamellenjalousien
US4145797A (en) * 1977-07-28 1979-03-27 International Blind Company Method and apparatus of making ladders for venetian blind assemblies
DE3024832A1 (de) * 1980-07-01 1982-01-28 Hunter Douglas Industries B.V., Rotterdam Vorrichtung zum herstellen von lamellen fuer eine lamellenjalousie

Also Published As

Publication number Publication date
CA1245430A (en) 1988-11-29
DK372584D0 (da) 1984-08-01
DK160718C (da) 1991-09-23
US4516300A (en) 1985-05-14
EP0133759A2 (de) 1985-03-06
DK372584A (da) 1985-02-02
EP0133759A3 (en) 1986-07-16
DK160718B (da) 1991-04-08
DE3475418D1 (en) 1989-01-05

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